AD 48-49-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8 | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8A | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8B | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8C | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8D | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8E | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8F | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | T-8F | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft |
Unsafe Condition
Cracks in the flange of the vertical stabilizer rear spar fuselage attachment fitting No. 18419 adjacent to the 3/8-inch tube welded across the web between the flanges, or insufficient welds around the bushing, could lead to structural failure of the vertical stabilizer.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect fitting No. 18419 for cracks and weld integrity. Rework by applying a 360-degree weld around the 3/8-inch tube or weld AN 960-616 washers to each flange. Replace the fitting if multiple cracks or cracks near the web are found. The manufacturer may provide a new 0.049 thickness steel fitting for defective 0.035 steel fittings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
January 15, 1949
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Affected Aircraft
LUSCOMBE Model 8 Series Aircraft (Models 8, 8A, 8B, 8C, 8D, 8E, 8F, T-8F) - all serial numbers. Excluded if the fitting is 0.049 thickness steel or replaced with a new fitting from Luscombe Airplane Corp.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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